diff --git a/requirements.txt b/requirements.txt
index 32fedc6..bda06da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,10 +2,10 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-pbr>=1.8 # Apache-2.0
+pbr>=2.0.0 # Apache-2.0
 Jinja2!=2.9.0,!=2.9.1,!=2.9.2,!=2.9.3,!=2.9.4,>=2.8 # BSD License (3 clause)
 oslo.serialization>=1.10.0 # Apache-2.0
 psutil>=3.2.2 # BSD
 six>=1.9.0 # MIT
 oslo.i18n>=2.1.0 # Apache-2.0
-oslo.utils>=3.18.0 # Apache-2.0
+oslo.utils>=3.20.0 # Apache-2.0